G - RAPHENE OPTOELECTRONICS FROM THE VISIBLE
... awarded the Nobel prize in Physics "for ground-breaking experiments regarding the two-dimensional material graphene". This great news boosted my enthusiasm as I was starting to work with such extraordinary material in a research field completely new to me. Indeed, since its discovery in 2004 graphen ...
Complete Collection June 1, 2004 I recently bought a used
... consuming electric power or generators that produce electric power without consuming mechanical power from the
systems that turns them? -- LB (Yes, I’m asking myself this question)
While it may seem as though there is some grand conspiracy among physicists to deny validation to those
inventors, noth ...
practical volume holography - Workspace
... After what might well be described as an over-optimistic birth and a difficult
adolescence, the 1980s have finally seen volume holography mature from an art into a
science. Exhibitions have taken display holograms from the laboratory into the home, and
the production of apparently solid three-dimens ...
FUNDAMENTALS OF LIGHT SOURCES AND LASERS
... Chapter 12 details common solid-state lasers, including YAG and ruby. Pump
sources, including flashlamps, CW arc lamps, and semiconductor lasers, are examined as well as techniques such as nonlinear harmonic generation (often used with
these lasers). Chapter 13 details the basics of semiconductor la ...
Scattering of Electromagnetic Radiation by
... Table 2. Error in scattering cross section of finite element calculations in which the
model edge length was systematically varied. All calculations are for the case of a
40-nm sphere at the center of a cubic model. ....................................................... 101
Table 3. Error in scatte ...
Chapter 1 - NYU Physics
... structures via Laser Trimming) Progress in Nanotechnology Research, Nova Science
Quantum information with Rydberg atoms
... Neutral atoms distinguish themselves from ions when
we consider their state dependent interaction properties,
which are essential for implementing two-qubit quantum
gates. Figure 1 shows the dependence of the two-particle
interaction strength on separation R for singly charged
ions, ground-state neu ...
Cold and trapped metastable noble gases - IAP TU
... et al., 2006). It is remarkable that these gases can be cooled to
or close to quantum degeneracy (kinetic energy 1010 eV)
in spite of their large internal energy ( 20 eV). In that sense,
they are rather exotic and offer unusual features that have
produced many results complementary to those with ...
LASER LIGHT DYNAMICS vol 2
... allows one to predict the coherence and noise properties of laser light (and
that of light from lamps). This theory which I published in 1964 showed
for the first time that the statistical properties of laser light change dramatically at laser threshold. In the following years my group in Stuttgart ...
Preparation and applications of periodical gold
... ”Nanostructures − structures with at least one dimension between 1 nm and 100
nm − have attracted steadily growing interest due to fascinating properties and
intriguing applications that are complementary or superior to those of bulk materials. [...] The fundamental study of phenomena that occur in ...
... In the first place I would like to thank my supervisor Ed Hinds. His vast experience
and passion for Physics have been an example and an inspiration for me.
I will continue by acknowledging the support of the government of México, which
through its institutions, Consejo Nacional de Ciencia y Tecnol ...
Experimental Generation and Manipulation of Quantum Squeezed
... well as observing noise reduction for a broad range of detection frequencies, from tens of
kHz to several MHz. We use this source of squeezed vacuum at 795 nm to further study
the noise properties of these states and how they are affected by resonant atomic
interactions. This includes the use of a s ...
Laser Cooling and Trapping of Neutral Calcium Atoms
... lifetime of the MOT increases, with lifetimes up to 50 ms having been measured.
These measurements are compared with a rate equation model and were found to
be in agreement. A 1530 nm diode laser has also been used in conjunction with
the 672 nm laser, to repump atoms from the metastable 3 P2 state ...
Chapter 14 Interference and Diffraction
... must maintain a constant phase relation. For example, if two waves are completely out of
phase with φ = π , this phase difference must not change with time.
(ii) The light must be monochromatic. This means that the light consists of just one
wavelength λ = 2π / k .
Light emitted from an incandescent ...
Cold and trapped metastable noble gases
... sions of these three topics can be found elsewhere (Baldwin, 2005; Cronin et al., 2009; Killian and Rolston, 2010).
The first section (II) is devoted to the production
and detection of cold clouds of metastable noble gas
atoms, describing metastable production, beam slowing
and trapping. We also dis ...
Optical control of single neutral atoms
... simulation. Alternatively, the trapped atoms are continuously illuminated
by near-resonant light, and the fluorescing atomic cloud is observed with
a specially designed high-resolution imaging system. The temperature is
inferred from the size of the cloud and from the oscillation frequencies of
... minimum, each ray from the upper half will be exactly 180° out of phase with a
corresponding ray form the lower half. For example, suppose there are 100 point sources,
with the first 50 in the lower half, and 51 to 100 in the upper half. Source 1 and source 51
are separated by a distance a / 2 and a ...
Physical One-Way Functions - MIT Center for Bits and Atoms
... physical analogs of cryptosystems.
Physical one-way functions are defined with respect to a physical probe and physical
system in some unknown state. A function is called a physical one-way function if (a)
there exists a deterministic physical interaction between the probe and the system
which produ ...
History of optics
Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term τα ὀπτικά which refers to matters of vision. Optics was significantly reformed by the developments in the medieval Islamic world, such as the beginnings of physical and physiological optics, and then significantly advanced in early modern Europe, where diffractive optics began. These earlier studies on optics are now known as ""classical optics"". The term ""modern optics"" refers to areas of optical research that largely developed in the 20th century, such as wave optics and quantum optics.